Re: Return explicitly "empty" MapResult (fail-fast)

[monkyyy via Digitalmars-d-learn]

On Thursday, 1 January 2026 at 19:30:11 UTC, zhade wrote:

    auto list = someExpensiveOperation();

    return list
        .filter!filterFunc
        .map!mapFunc;
}

oh your looking to mutate the data

Consider my mutmap here if expensive operation is element by 
element: 
https://forum.dlang.org/post/urwssqgafegghncks...@forum.dlang.org